This topic is about a common issue faced by people using a one-piece ostomy appliance: the barrier ring "turtlenecking." This happens when the barrier ring rolls upward and protrudes into the pouch after being warmed by body heat. The person experiencing this is wondering if this is normal and how to prevent it. Here are some helpful insights and advice:

1. Turtlenecking is generally normal. Barrier rings are designed to swell or roll into any space around the stoma to create a seal. It usually settles back down and is not harmful if there are no leaks or reduced wear time.

2. Some people find it helpful to press the barrier ring onto the flange first, then apply the appliance over the stoma. A little swelling is expected and acceptable.

3. A tight, flush wafer opening can help minimize excessive rolling. Some people leave a small gap and let the ring expand to fill it.

4. If cutting the wafer is difficult or the stoma shape is irregular, consider precut or moldable options:
- The Coloplast SenSura Mio Click two-piece moldable system is described as a "game-changer" with a flexible design.
- The Hollister Adapt CeraRing barrier ring is reported to swell less than the Coloplast Brava.

5. Some users find that the Coloplast Brava barrier ring swells too much. Switching to the Hollister CeraRing solved this issue for one person.

6. For moldable flanges, start attaching on one side of the stoma and slowly work around to the other side to ensure an even, snug fit.

7. People with arthritis or peripheral neuropathy often prefer precut or moldable products to avoid using scissors and still achieve a good seal.

8. The general consensus is that if the ring’s turtlenecking is not causing leaks, skin irritation, or shortened wear time, no change is necessary. Otherwise, experiment with different ring brands, wafer sizes, or moldable systems until you find a comfortable solution.